code: def define_graph(self):
      rng = self.coin()
      jpegs, labels = self.input(name="Reader")
      images = self.decode_gpu(jpegs)
      images = self.res(images)
      output = self.cmnp(images.gpu(), mirror=rng)
      return (output, labels.gpu())
  
file_path: DALI/dali/test/python/test_RN50_data_fw_iterators.py
imports: from nvidia.dali.pipeline import Pipeline
  import nvidia.dali.ops
  import nvidia.dali.types
  import argparse
  import time
label_desc: Use image node_id 2 for calling the RN50Pipeline obj's underlying member method code with example usage: obj.define_graph() and returns: output,  labels